XML Viewer for API Responses

About This Tool

Working with REST APIs, GraphQL endpoints, and webhooks means constantly processing XML response data. Raw API responses are typically minified — stripped of all whitespace and line breaks to minimize payload size — making them virtually impossible to read without formatting. This tool transforms those compact responses into well-structured, readable output that reveals the data hierarchy and makes it easy to locate specific values. Paste a response from Postman, cURL, browser DevTools Network tab, or any API client, and instantly see the formatted result. The tool validates the response structure during processing, catching malformed responses that might cause subtle bugs in your application. For developers debugging production issues, this immediate visibility into API data structures is invaluable.

What is XML Viewer?

An XML viewer provides validation and a formatted structural view of XML documents in one tool. It validates the document for well-formedness, reports element count and attribute count, and displays the formatted XML with proper indentation to reveal the complete element hierarchy. This dual-purpose tool is ideal for quickly inspecting XML from APIs, feeds, and configuration files without switching between a validator and a formatter. Whether you are debugging a failing SOAP service, exploring an unknown XML schema, or reviewing a configuration file, the XML viewer gives you immediate insight into the document's structure and validity.

How to Use This Tool

1. Paste your XML.
2. Click Inspect XML.
3. See validation results and element statistics.
4. View the formatted XML below the report.

Common Use Cases

• Formatting raw API response bodies for debugging
• Processing webhook payloads for analysis
• Cleaning up GraphQL query responses
• Inspecting third-party API data structures

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